I just discovered the new green button behavior in Yosemite that causes the window to go to full screen instead of maximizing it. That's fine, and I can live with option+click to get the old behavior, but I can't figure out how to exit full screen mode. I'm doing it in Chrome 38.0.2125.104, if that makes a difference.
The Esc key certainly doesn't work, and there's no longer the blue double arrow when you move the cursor to the upper right hand corner.
How do I exit full screen mode after entering it by clicking on the green window button on the upper left corner of the window?